What distinguishes committing a haram act from denying its prohibition?

Prescribed Acts and Prohibitions: Fard, Wajib, Sunnah, Nafl, Haram, Makruh, Azimah and Rukhsah

• They invariably have precisely the same doctrinal consequence
• Commission automatically abolishes the prohibition
• Commission breaches the rule, while juhud denies the established rule itself
• Juhud is only another word for omitting voluntary worship